SP3223EB Datasheet, PDF (1/25 Pages) Sipex Corporation – Intelligent +3.0V to +5.5V RS-232 Transceivers

®
SP3223EB/3243EB
Intelligent +3.0V to +5.5V RS-232 Transceivers
■ Meets true EIA/TIA-232-F Standards
from a +3.0V to +5.5V power supply
■ Interoperable with EIA/TIA-232 and
adheres to EIA/TIA-562 down to a +2.7V
power source
■ AUTO ON-LINE^® circuitry automatically
wakes up from a 1µA shutdown
■ Minimum 250kbps data rate under load
■ Regulated Charge Pump Yields Stable
RS-232 Outputs Regardless of V_CC
Variations
■ Enhanced ESD Specifications:
+15kV Human Body Model
+15kV IEC1000-4-2 Air Discharge
+8kV IEC1000-4-2 Contact Discharge
EN 1
C1+ 2
20 _SHUTDOWN
19 VCC
V+ 3
C1- 4
C2+ 5
C2- 6
V- 7
18 GND
17 T₁OUT
SP3223EB 16 R₁IN
15 R₁OUT
14 ONLINE
T₂OUT 8
R₂IN 9
R₂OUT 10
13 _T1IN
12 T₂IN
11 STATUS
Now Available in Lead Free Packaging
DESCRIPTION
The SP3223EB and SP3243EB products are RS-232 transceiver solutions intended for
portable or hand-held applications such as notebook and palmtop computers. The SP3223EB
and SP3243EB use an internal high-efficiency, charge-pump power supply that requires only
0.1µF capacitors in 3.3V operation. This charge pump and Sipex's driver architecture allow
the SP3223EB/3243EB series to deliver compliant RS-232 performance from a single power
supply ranging from +3.0V to +5.5V. The SP3223EB is a 2-driver/2-receiver device, and the
SP3243EB is a 3-driver/5-receiver device ideal for laptop/notebook computer and PDA
applications. The SP3243EB includes one complementary receiver that remains alert to
monitor an external device's Ring Indicate signal while the device is shutdown.
The AUTO ON-LINE® feature allows the device to automatically "wake-up" during a shutdown
state when an RS-232 cable is connected and a connected peripheral is turned on. Otherwise,
the device automatically shuts itself down drawing less than 1µA.
SELECTION TABLE
Device
Power Supplies RS-232 RS-232
External AUTO ON-LINE^® TTL 3-State No. of
Drivers Receivers Components
Circuitry
Pins
SP3223EB +3.0V to +5.5V
2
2
4 capacitors
YES
YES
20
SP3243EB +3.0V to +5.5V
3
5
4 capacitors
YES
YES
28
Applicable U.S. Patents - 5,306,954; and other patents pending.
Date: 6/2/04
SP3223EB/3243EB +3.0V to +5.5V RS-232 Transceivers
1
© Copyright 2004 Sipex Corporation